System Energy and Efficiency Analysis of 12.5 W VRFB with Different Flow Rates
作者机构：School of Energy and Power EngineeringChangsha University of Science and TechnologyChangsha410114China Hunan Vanadium Valley New Energy Technology Co.Ltd.Changsha410114China Big Pawer Electrical Technology Xiangyang Co.Ltd.Xiangyang441057China
出 版 物：《Energy Engineering》 (能源工程（英文）)
年 卷 期：2023年第120卷第12期
页 面：2903-2915页
核心收录：
基 金：supported by the Special Fund for the Construction of Innovative Province in Hunan Province,China(2020RC3038) the Changsha City Fund for Distinguished and Innovative Young Scholars,China(kq1802007)
主 题：Vanadium redox flow battery flow rate system energy efficiency
摘 要：Vanadium redox flow battery(VRFB)is considered one of the most potential large-scale energy storage technolo-gies in the future,and its electrolyte flow rate is an important factor affecting the performance of *** study the effect of electrolyte flow rate on the performance of VRFB,the hydrodynamic model is established and a VRFB system is *** results show that under constant current density,with the increase of electrolyte flow rate,not only the coulombic efficiency,energy efficiency,and voltage efficiency will increase,but also the capacity and energy discharged by VRFB will also *** on the other hand,as the flow rate increases,the power of the pump also increases,resulting in a decrease in system *** energy discharged by the system does not increase with the increase in flow *** the balance between efficiency and pump power loss,it is experimentally proved that 120 mL·min-1 is the optimal working flow rate of the VRFB system,which can maximize the battery performance and discharge more energy.
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